CN206353081U - Damperparameters testing stand - Google Patents

Abstract

The utility model relates to a test device for testing the dynamic and static characteristics of a hydraulic damper by using a servo motor. Damper parameter test bench, including frame, tested damper, connecting rod, pressure sensor, slider, ball screw, track, coupling, servo motor, screw support, encoder, servo motor fixed on the frame One end is connected with one end of the ball screw through a coupling, the other end of the ball screw is installed on the support of the screw, the encoder is set on the ball screw at one end of the support of the screw, and the slider can be set on the bracket along the One side of the slider is rotatably connected with the ball screw, the other side of the slider is fixed with one end of the connecting rod, the other end of the connecting rod is connected with the damper under test, and the damper under test is fixed on the connecting rod. between the rod and the frame; the utility model is to complete the displacement loading under the rotating servo motor, which replaces the hydraulic system test bench test. The test bench has the characteristics of fast displacement speed, high precision, low noise and low cost. Efficient testing of dampers under control.

Description

Damper parameter test bench

technical field

The utility model relates to a test device for testing the dynamic and static characteristics of a hydraulic damper by using a servo motor.

Background technique

The hydraulic damper is a vibration-absorbing and attenuating device sensitive to speed. It can absorb and attenuate the energy of vibration and impact, thereby reducing the dynamic response of components and protecting important facilities such as buildings, engineering structures, and mechanical structures from earthquakes. , explosion, natural wind and other shock shock damage. In the past ten years, with the continuous improvement of hydraulic damper manufacturing technology and the improvement of various testing and inspection technologies, hydraulic dampers have been used more and more widely. In order to detect the technical performance index of the hydraulic damper and the manufacturing quality of the product, a hydraulic damper test system must be built to conduct performance tests and quality inspections of the hydraulic damper.

For this purpose, corresponding test benches need to be developed. Most of the test benches are a typical electro-hydraulic servo control system. The parameter measurement and research of the damper are realized by using the servo motor and the ball screw.

Utility model content

The purpose of the utility model is to provide a damper parameter test bench.

In order to achieve the above object, the technical solution adopted by the utility model is: a damper parameter test bench, including a frame, a tested damper, a connecting rod, a pressure sensor, a slider, a ball screw, a track, a shaft coupling, Servo motor, screw support, encoder, the servo motor is fixed at one end of the frame, and connected to one end of the ball screw through a coupling, the other end of the ball screw is installed on the screw support, and the encoder is set on the On the ball screw at one end of the rod support, the slider can slide along the track on the bracket and can slide along the track. One side of the slider is connected to the ball screw, and the other side of the slider is connected to the connecting rod. One end of the connecting rod is fixed, and the other end of the connecting rod is connected to the tested damper, and the tested damper is fixed between the connecting rod and the frame.

Further, the slider is connected to the ball screw through screw rotation.

Working principle: In order to realize the dynamic, static and dynamic characteristics of the tested damper, the rotational motion of the high-precision, high-dynamic and high-speed servo motor is converted into linear reciprocating motion by the ball screw, and the tested damper is tested. Encoders and pressure transducers are used to measure the displacement and force of the damper.

The beneficial technical effects of the utility model are: the utility model completes the displacement loading under the rotating servo motor, which replaces the hydraulic system test bench test. The test bench has the characteristics of fast displacement speed, high precision, low noise and low cost. Under the relevant electrical control, the efficient test of the damper can be satisfied.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of damper parameter test bench of the utility model;

In the figure, 1 frame, 2 tested damper, 3 connecting rod, 4 pressure sensor, 5 slider, 6 ball screw, 7 track, 8 coupling, 9 servo motor, 10 screw support, 11 encoder.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will become apparent from the description, or may be learned by practice of the invention.

In order to solve the problems in the background technology, a structural diagram of a damper parameter test bench provided by the utility model is shown in Figure 1, including a frame 1, a tested damper 2, a connecting rod 3, a pressure sensor 4, and a slider 5 , ball screw 6, track 7, coupling 8, servo motor 9, screw support 10 and encoder 11, the servo motor is fixed at one end of the frame, and connected to one end of the ball screw through a coupling, the ball screw The other end of the rod is installed on the screw support, and the encoder is set on the ball screw at one end of the screw support. The slider can slide along the track on the bracket and slide along the track. One side of the slider is connected to the ball screw. The upper rotation connection, the other side of the slider is fixed to one end of the connecting rod, the other end of the connecting rod is connected to the damper under test, and the damper under test is fixed between the connecting rod and the frame.

In the utility model, the sliding block and the ball screw are connected through screw rotation.

Working process: The servo motor drives the screw to rotate through the coupling, and the nut converts the rotary motion into linear motion.

The ball nut drives the slider to move on the track, and the slider is connected to the tested damper through the connecting rod, and exerts a displacement force on the tested damper.

The displacement and force of the damper are measured by the encoder and the pressure sensor respectively. The dynamic and static characteristics of the damper can be analyzed through the measured displacement and force.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and unless defined as herein, are not to be interpreted in an idealized or overly formal sense Explanation.

Those of ordinary skill in the art can understand that: the components in the device in the embodiment can be distributed in the device in the embodiment according to the description in the embodiment, and can also be changed and located in one or more devices different from the embodiment. The components in the above embodiments can be combined into one component, and can also be further divided into multiple subcomponents.

Finally, it should be noted that: the above embodiments are only used to illustrate and not limit the technical solutions of the present utility model, although the present utility model has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: the present utility model can still be Any modification or partial replacement without departing from the spirit and scope of the present utility model shall be covered by the claims of the present utility model.

Claims (2)

1. The damper parameter test bench is characterized in that it includes a frame, a tested damper, a connecting rod, a pressure sensor, a slider, a ball screw, a track, a coupling, a servo motor, a screw support, an encoder, The servo motor is fixed at one end of the frame and connected to one end of the ball screw through a coupling. The other end of the ball screw is installed on the support of the screw. The slider can slide along the track provided on the bracket, one side of the slider is connected with the ball screw, the other side of the slider is fixed with one end of the connecting rod, and the other side of the connecting rod One end is connected with the damper under test, and the damper under test is fixed between the connecting rod and the frame. 2 . The damper parameter test bench according to claim 1 , wherein the slider and the ball screw are connected by screw rotation. 3 .